Moving channels resets channel numbers

[chazlarson]

I've got five channels configured:

I edit them and change the channel numbers:

Now I drag one of the channels to change the order [I dragged Lifetime from position 1 to 3]:

Note that the channel number changes got replaced with 001-005.

This happens whether or not I've saved the channel number changes, and whether or not I have "lock channel number" checked.